Elecom ZERO SHOCK A4 13" inch Laptop Inner Sleeve ( Black ) Outer dimensions - Approximately Width 12.40 x Depth 0.98 x Height 10.43 inch, Width 315 x Depth 25 x Height 265 mm Internal dimensions - Approximately Width 11.41 x Depth 1.57 x Height 9.44 inch, Width 290 x Depth 40 x Height 240 mm